The S63B44B (also written as S63B44B or S63TU and related variants) is a high-performance 4.4L twin-turbocharged V8 gasoline engine developed
by BMW’s M Division based on the N63. It is a high-output version of the N63, built specifically for M models, featuring a hot-V twin-turbo design,
reinforced internal components, and higher power output. The S63B44B belongs to the newer S63TU variant, which adds Valvetronic, a higher compression ratio,
and an improved turbocharger and cooling system compared to the earlier S63B44O0.
Our products are exported to various parts of the country, and the customers we have worked with have received unanimous praise. The company has invested over 20 million yuan in high-end remanufacturing equipment imported from abroad and a first-class production team in the country. Our warehouse has a total area of over 8000 square meters, with scientific management and sufficient supply of goods.
Engine Code: S63B44B (Related variants include S63B44T0, S63B44T2, S63B44T4, etc.)
Displacement: 4,395 cm³ (4.4 L)
Bore × Stroke: 89.0 mm × 88.3 mm
Compression Ratio: Approx. 10.0:1 (higher in later models)
Cylinder Configuration: 90° V8, aluminum alloy cylinder block
Valve Train: DOHC 32-valve + Double-VANOS + Valvetronic
Fuel System: Direct injection
Turbocharging: Twin-Scroll turbochargers (center-mounted on the hot end)
Power Range: Approx. 560–635 PS (depending on specific calibration; higher for Competition / CS models)
Torque range: approx. 680–750 Nm
Timing drive: timing chain
Engine oil capacity: approx. 8.5–10 L (BMW Longlife-spec high-performance engine oil recommended)
Production years: approx. 2011 onward (S63TU series continues through newer models)
A long block typically includes core components such as the cylinder block, crankshaft, pistons, connecting rods,
cylinder head, and timing system. The S63 series uses reinforced forged or high-spec internal components,
making it better suited for high-load applications and track use than the standard N63. When replacing it, you must verify the exact part number and the vehicle’s VIN.
The early S63B44T0 engine was used in selected BMW M models, including:
BMW M5 – F10 Sedan
BMW M5 Competition – F10, selected configurations
BMW M5 30 Jahre Edition – F10, selected configurations
BMW M6 Convertible – F12
BMW M6 Coupe – F13
BMW M6 Gran Coupe – F06
BMW M6 Competition – selected F06 / F12 / F13 configurations
Vehicle applications and production dates must be checked against the original engine identification and VIN.
The following BMW catalogue numbers are references for selected S63B44B short-engine or remanufactured engine assemblies:
11002348668 – Short Engine
11002348670 – RP Engine
11002420707 – Short Engine
11002420708 – RP Engine
11002221258 – Short Engine, selected catalogue application
11002221259 – Remanufactured Short Engine
11002296765 – Short Engine
11002296767 – Remanufactured Short Engine
Important: These are catalogue references for short-engine or remanufactured engine assemblies, not universal long-block OE numbers.
The correct replacement engine reference must be verified using the vehicle VIN, production date and original engine version.
We welcome inquiries from:
BMW engine importers
Automotive engine wholesalers
BMW parts distributors
Professional engine rebuilding workshops
Automotive repair companies
International automotive trading companies
For wholesale inquiries, please provide your required engine version, order quantity and destination country.
Contact us for product availability, engine configuration, quotations, packaging information and shipping arrangements.
Q1: What is the displacement of the BMW S63B44B engine?
The early S63 engine has a displacement of 4,395 cc, or approximately 4.4 liters.
Q2: Is the BMW S63B44B a V8 engine?
Yes. It is a 4.4L V8 gasoline engine equipped with twin turbochargers.
Q3: Which BMW vehicles use the early S63B44T0 engine?
Selected BMW F10 M5, F12 M6 Convertible, F13 M6 Coupe and F06 M6 Gran Coupe models use S63B44T0 engine versions.
Q4: Is S63B44T0 interchangeable with S63B44T2 or S63B44T4?
Not automatically. Different S63 generations have differences in engine components, crankcase design
and electronic systems. VIN and engine version verification is required.
Q5: Does the long block include twin turbochargers?
Not by default. Turbochargers and external accessories depend on the actual product package and must be confirmed before ordering.
Q6: Can you provide wholesale quotations?
Please send us your required engine version, order quantity and destination country for product availability and quotation details.
Looking for a BMW S63B44B 4.4L V8 twin-turbo gasoline engine long block?
Send us your VIN, original engine code or engine photos. Our sales team can help identify the correct engine version
and check compatibility for your replacement engine requirements.
Contact us today for B2B wholesale inquiries and further product information.
| Place of Origin | Guangdong, China |
| Condition | New |
| Purpose | for replace/repair |
| Type | Gas / Petrol Engine |
| Power | OEM Standards |
| Quantity (pieces) | 1 - 10 | 11 - 50 | > 50 |
| Lead time (days) | 7 | 15 | To be negotiated |
1. Our remanufactured products use accessories provided by well-known brand suppliers such as VICTORREINZ, SCHAEFFLER, KS KOLBENSCHMIDT GmbH, etc.
2. Our product quality is close to the original factory quality, but the price is only 50-60% of the original engine. We can also provide you with a one-year or 100000 kilometer warranty service for the entire machine, and professional after-sales personnel will follow up with you.
3. We have over 15 years of experience in the production and research of automotive engines, and our technical level and personnel training are very scientific and mature. Customers who have worked with us have expressed their agreement with our products and after-sales service.
4. 2018 It has achieved an annual production capacity of 2200 units and has become a major supplier of high-end engine remanufacturing and parts in China's automotive aftermarket.
5. In April 2021, T/CAAMTB passed the certification company of China Automobile Research and Huacheng. 19-2019 Certification of the management system requirements of gas vehicle parts remanufacturing enterprisesIn October 2021, he became a member of the National Green Manufacturing Technology Standardization Committee and participated in the drafting of the Technical Specification for Assembly of Remanufacturing Mechanical and Electrical Products.
